Home / 1,111,678.50-1,534,121.65-602,381.78

Finding the Fourth Proportional to 1,111,678.50, 1,534,121.65 and 602,381.78

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Solution

The fourth proportional to 1,111,678.50, 1,534,121.65 and 602,381.78 is: 831,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,678.50 : 1,534,121.65 = 602,381.78 : x
  2. Step 2: Convert to fraction form
    1,111,678.50/1,534,121.65 = 602,381.78/x
  3. Step 3: Cross multiply
    1,111,678.50x = 1,534,121.65 × 602,381.78
  4. Step 4: Simplify right side
    1,111,678.50x = 924,126,930,263.54
  5. Step 5: Solve for x
    x = 924,126,930,263.54/1,111,678.50
  6. Step 6: Final answer
    x = 831,289.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.